骆天天,张元动

• 1:中国科学院南京地质古生物研究所现代古生物学与地层学国家重点实验室

摘要(Abstract)：

根据宜昌陈家河剖面大湾组的笔石标本,确立笔石序列自下而上为:Didymograptellus eobifidus带、Corymbograptus deflexus带和Azygograptus suecicus带(大湾组下段),Exigraptus clavus带和Undulogr aptusaustrodentatus带(大湾组上段)。对湖北南漳的全家湾和李家湾两剖面的大湾组进行了详细采集测量,其中全家湾剖面大湾组下段自下而上识别出D.eobifidus带、C.deflexus带和A.suecicus带;李家湾剖面大湾组下段自下而上识别出D.eobifidus带和A.suecicus带,证实南漳大湾组的底界与宜昌地区基本一致。

关键词(KeyWords)： 笔石;生物地层学;大湾组;奥陶系;南漳;宜昌;湖北

Abstract:

Keywords:

基金项目(Foundation): 中国科学院创新方向性项目(KZCX2-YW-122,KZCX3-SW-149);; 科技部基础性工作专项(2006FY120300-4)资助

作者(Author): 骆天天,张元动

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